CA2023167C - Systeme et methode de codage de paroles - Google Patents

Systeme et methode de codage de paroles Download PDF

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Publication number
CA2023167C
CA2023167C CA002023167A CA2023167A CA2023167C CA 2023167 C CA2023167 C CA 2023167C CA 002023167 A CA002023167 A CA 002023167A CA 2023167 A CA2023167 A CA 2023167A CA 2023167 C CA2023167 C CA 2023167C
Authority
CA
Canada
Prior art keywords
codebook
perceptually weighted
filtered
speech
speech signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CA002023167A
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English (en)
Other versions
CA2023167A1 (fr
Inventor
Timothy James Moulsley
Patrick William Elliott
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10661702&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2023167(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of CA2023167A1 publication Critical patent/CA2023167A1/fr
Application granted granted Critical
Publication of CA2023167C publication Critical patent/CA2023167C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L2019/0001—Codebooks
    • G10L2019/0002—Codebook adaptations
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L2019/0001—Codebooks
    • G10L2019/0013—Codebook search algorithms
    • G10L2019/0014—Selection criteria for distances

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CA002023167A 1989-08-16 1990-08-13 Systeme et methode de codage de paroles Expired - Lifetime CA2023167C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8918677A GB2235354A (en) 1989-08-16 1989-08-16 Speech coding/encoding using celp
GB8918677.9 1989-08-16

Publications (2)

Publication Number Publication Date
CA2023167A1 CA2023167A1 (fr) 1991-02-17
CA2023167C true CA2023167C (fr) 2002-01-29

Family

ID=10661702

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002023167A Expired - Lifetime CA2023167C (fr) 1989-08-16 1990-08-13 Systeme et methode de codage de paroles

Country Status (11)

Country Link
US (1) US5140638B1 (fr)
EP (1) EP0413391B1 (fr)
JP (1) JP3392412B2 (fr)
KR (1) KR100275054B1 (fr)
AU (1) AU648479B2 (fr)
BR (1) BR9003987A (fr)
CA (1) CA2023167C (fr)
DE (1) DE69029232T2 (fr)
FI (1) FI903990A7 (fr)
GB (1) GB2235354A (fr)
HU (1) HUT58157A (fr)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1036886C (zh) * 1990-09-28 1997-12-31 菲利浦电子有限公司 对模拟信号编码的方法和系统
DE69233502T2 (de) * 1991-06-11 2006-02-23 Qualcomm, Inc., San Diego Vocoder mit veränderlicher Bitrate
US5694519A (en) * 1992-02-18 1997-12-02 Lucent Technologies, Inc. Tunable post-filter for tandem coders
CA2105269C (fr) * 1992-10-09 1998-08-25 Yair Shoham Technique d'interpolation temps-frequence pouvant s'appliquer au codage de la parole en regime lent
JP2953238B2 (ja) * 1993-02-09 1999-09-27 日本電気株式会社 音質主観評価予測方式
FR2702590B1 (fr) * 1993-03-12 1995-04-28 Dominique Massaloux Dispositif de codage et de décodage numériques de la parole, procédé d'exploration d'un dictionnaire pseudo-logarithmique de délais LTP, et procédé d'analyse LTP.
JP3224955B2 (ja) * 1994-05-27 2001-11-05 株式会社東芝 ベクトル量子化装置およびベクトル量子化方法
TW271524B (fr) 1994-08-05 1996-03-01 Qualcomm Inc
US5742734A (en) * 1994-08-10 1998-04-21 Qualcomm Incorporated Encoding rate selection in a variable rate vocoder
US6263307B1 (en) 1995-04-19 2001-07-17 Texas Instruments Incorporated Adaptive weiner filtering using line spectral frequencies
GB9512284D0 (en) * 1995-06-16 1995-08-16 Nokia Mobile Phones Ltd Speech Synthesiser
JP3616432B2 (ja) * 1995-07-27 2005-02-02 日本電気株式会社 音声符号化装置
FR2742568B1 (fr) * 1995-12-15 1998-02-13 Catherine Quinquis Procede d'analyse par prediction lineaire d'un signal audiofrequence, et procedes de codage et de decodage d'un signal audiofrequence en comportant application
US5819213A (en) * 1996-01-31 1998-10-06 Kabushiki Kaisha Toshiba Speech encoding and decoding with pitch filter range unrestricted by codebook range and preselecting, then increasing, search candidates from linear overlap codebooks
TW317051B (fr) * 1996-02-15 1997-10-01 Philips Electronics Nv
KR100455970B1 (ko) * 1996-02-15 2004-12-31 코닌클리케 필립스 일렉트로닉스 엔.브이. 복잡성이감소된신호전송시스템,전송기및전송방법,인코더및코딩방법
US5751901A (en) * 1996-07-31 1998-05-12 Qualcomm Incorporated Method for searching an excitation codebook in a code excited linear prediction (CELP) coder
US6516299B1 (en) 1996-12-20 2003-02-04 Qwest Communication International, Inc. Method, system and product for modifying the dynamic range of encoded audio signals
US5864820A (en) * 1996-12-20 1999-01-26 U S West, Inc. Method, system and product for mixing of encoded audio signals
US6782365B1 (en) 1996-12-20 2004-08-24 Qwest Communications International Inc. Graphic interface system and product for editing encoded audio data
US6477496B1 (en) 1996-12-20 2002-11-05 Eliot M. Case Signal synthesis by decoding subband scale factors from one audio signal and subband samples from different one
US6463405B1 (en) 1996-12-20 2002-10-08 Eliot M. Case Audiophile encoding of digital audio data using 2-bit polarity/magnitude indicator and 8-bit scale factor for each subband
US5845251A (en) * 1996-12-20 1998-12-01 U S West, Inc. Method, system and product for modifying the bandwidth of subband encoded audio data
US5864813A (en) * 1996-12-20 1999-01-26 U S West, Inc. Method, system and product for harmonic enhancement of encoded audio signals
FI113571B (fi) * 1998-03-09 2004-05-14 Nokia Corp Puheenkoodaus
US7072832B1 (en) * 1998-08-24 2006-07-04 Mindspeed Technologies, Inc. System for speech encoding having an adaptive encoding arrangement
US6691084B2 (en) 1998-12-21 2004-02-10 Qualcomm Incorporated Multiple mode variable rate speech coding
KR100341398B1 (ko) * 2000-01-27 2002-06-22 오길록 씨이엘피형 보코더의 코드북 검색 방법
US6879955B2 (en) * 2001-06-29 2005-04-12 Microsoft Corporation Signal modification based on continuous time warping for low bit rate CELP coding
JP2010034794A (ja) * 2008-07-28 2010-02-12 Fujitsu Ltd オーディオ符号化装置、オーディオ符号化プログラム及びオーディオ符号化方法
ATE449400T1 (de) * 2008-09-03 2009-12-15 Svox Ag Sprachsynthese mit dynamischen einschränkungen
WO2013019562A2 (fr) * 2011-07-29 2013-02-07 Dts Llc. Processeur d'intelligibilité de voix adaptatif

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3335358A1 (de) * 1983-09-29 1985-04-11 Siemens AG, 1000 Berlin und 8000 München Verfahren zur bestimmung von sprachspektren fuer die automatische spracherkennung und sprachcodierung
EP0241170B1 (fr) * 1986-03-28 1992-05-27 AT&T Corp. Dispositif de génération d'un signal c2ractéristique adaptatif de parole
IT1195350B (it) * 1986-10-21 1988-10-12 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante estrazione di para metri e tecniche di quantizzazione vettoriale
GB8630820D0 (en) * 1986-12-23 1987-02-04 British Telecomm Stochastic coder

Also Published As

Publication number Publication date
FI903990A7 (fi) 1991-02-17
HU904991D0 (en) 1991-01-28
BR9003987A (pt) 1991-09-03
KR910005589A (ko) 1991-03-30
DE69029232T2 (de) 1997-04-30
DE69029232D1 (de) 1997-01-09
EP0413391B1 (fr) 1996-11-27
AU6100090A (en) 1991-02-21
AU648479B2 (en) 1994-04-21
JPH0395600A (ja) 1991-04-19
GB2235354A (en) 1991-02-27
HUT58157A (en) 1992-01-28
EP0413391A3 (en) 1991-07-24
KR100275054B1 (ko) 2000-12-15
US5140638A (en) 1992-08-18
JP3392412B2 (ja) 2003-03-31
US5140638B1 (en) 1999-07-20
GB8918677D0 (en) 1989-09-27
FI903990A0 (fi) 1990-08-13
EP0413391A2 (fr) 1991-02-20
CA2023167A1 (fr) 1991-02-17

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